Find SCL references in SCLModuleEditor with Ctrl+Shift+G

[simantics/platform.git] / bundles / org.simantics.scl.ui / src / org / simantics / scl / ui / editor2 / FindSCLSearchAction.java

diff --git a/bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/editor2/FindSCLSearchAction.java b/bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/editor2/FindSCLSearchAction.java
new file mode 100644 (file)
index 0000000..15da419
--- /dev/null
+++ b/bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/editor2/FindSCLSearchAction.java
@@ -0,0 +1,121 @@
+package org.simantics.scl.ui.editor2;
+
+
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.search.ui.NewSearchUI;
+import org.eclipse.swt.custom.StyledText;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.PlatformUI;
+import org.simantics.scl.compiler.common.names.Name;
+import org.simantics.scl.compiler.elaboration.modules.SCLValue;
+import org.simantics.scl.compiler.errors.Locations;
+import org.simantics.scl.compiler.module.InvalidModulePathException;
+import org.simantics.scl.compiler.module.ModuleUtils;
+import org.simantics.scl.compiler.source.ModuleSource;
+import org.simantics.scl.osgi.SCLOsgi;
+import org.simantics.scl.ui.editor.completion.SCLTextEditorEnvironment;
+import org.simantics.scl.ui.search.SCLSearchQuery;
+
+public class FindSCLSearchAction extends AbstractHandler {
+
+    private static boolean isIdentifierPart(char c) {
+        return Character.isJavaIdentifierPart(c) || c=='.';
+    }
+    
+    private static String extractIdentifierAt(String text, int caretPos) {
+        int startPos = caretPos;
+        while(startPos > 0 && isIdentifierPart(text.charAt(startPos-1)))
+            --startPos;
+        int endPos = caretPos;
+        while(endPos < text.length() && isIdentifierPart(text.charAt(endPos)))
+            ++endPos;
+        return text.substring(startPos, endPos);
+    }
+    
+    private static final String SYMBOL_CHARS = "!$%&*+/<=>?@\\^|-:~.";
+    
+    private static boolean isSymbolPart(char c) {
+        for(int i=0;i<SYMBOL_CHARS.length();++i)
+            if(SYMBOL_CHARS.charAt(i) == c)
+                return true;
+        return false;
+    }
+    
+    private static String extractSymbolAt(String text, int caretPos) {
+        int startPos = caretPos;
+        while(startPos > 0 && isSymbolPart(text.charAt(startPos-1)))
+            --startPos;
+        int endPos = caretPos;
+        while(endPos < text.length() && isSymbolPart(text.charAt(endPos)))
+            ++endPos;
+        return text.substring(startPos, endPos);
+    }
+    
+    public static String extractIdentifierOrSymbolAt(String text, int caretPos) {
+        String result = extractIdentifierAt(text, caretPos);
+        if(!result.isEmpty())
+            return result;
+        return extractSymbolAt(text, caretPos);
+    }
+    
+    private static String extractLineAt(String text, int caretPos) {
+        int startPos = caretPos;
+        while(startPos > 0 && !isNewline(text.charAt(startPos-1)))
+            --startPos;
+        int endPos = caretPos;
+        while(endPos < text.length() && !isNewline(text.charAt(endPos)))
+            ++endPos;
+        return text.substring(startPos, endPos);
+    }
+    
+    private static boolean isNewline(char c) {
+        return c=='\n' || c=='\r';
+    }
+
+    @Override
+    public Object execute(ExecutionEvent event) throws ExecutionException {
+        IEditorPart editor = 
+                PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor();
+        if(!(editor instanceof SCLModuleEditor2))
+            return null;
+        SCLModuleEditor2 moduleEditor = (SCLModuleEditor2)editor;
+        StyledText styledText = (StyledText)moduleEditor.getAdapter(Control.class);
+        String text = styledText.getText();
+        int caretOffset = styledText.getCaretOffset();
+        
+        // Find the line where the caret is
+//        String lineAtCaret = extractLineAt(text, caretOffset);
+        // Try to find an identifier at caret
+        String identifierAtCaret = extractIdentifierOrSymbolAt(text, caretOffset);
+        if(identifierAtCaret.isEmpty())
+            return null;
+        SCLModuleEditorInput input = (SCLModuleEditorInput)moduleEditor.getEditorInput();
+        String localModuleName = input.getModuleName();
+        
+        SCLTextEditorEnvironment editorEnvironment = moduleEditor.getSCLTextEditorEnvironment();
+        editorEnvironment.updateEnvironment(moduleEditor.getDocument());
+        SCLValue value = editorEnvironment.getValue(identifierAtCaret);
+        Name name;
+        if (value == null) {
+            name = Name.create(localModuleName, identifierAtCaret);
+        } else {
+            name = value.getName();
+        }
+        SCLSearchQuery query = new SCLSearchQuery(name, localModuleName);
+        NewSearchUI.runQueryInBackground(query);
+            
+            
+            
+//            SCLTextEditorEnvironment editorEnvironment = moduleEditor.getSCLTextEditorEnvironment();
+//            editorEnvironment.updateEnvironment(moduleEditor.getDocument());
+//            SCLValue value = editorEnvironment.getValue(identifierAtCaret);
+//            //System.out.println("identifierAtCaret = " + identifierAtCaret + " [" + Locations.beginOf(value.definitionLocation) + ", " + Locations.endOf(value.definitionLocation) + "]");
+//            if(value != null)
+//                OpenSCLDefinition.openDefinition(value);
+        return null;
+    }
+
+}